JPS61115508A - Bed apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a bed device in which the height of a frame on which bedding such as a pinerest is placed can be arbitrarily adjusted.

[Technical background of the invention and its problems]

BACKGROUND OF THE INVENTION Among bed devices used as examination tables, treatment tables, etc., those in which the height of a frame on which bedding is placed during examination or treatment can be adjusted are in widespread use. There are various types of adjustment mechanisms for adjusting the height of the frame, but a typical example is one provided with telescopic legs, as shown in Japanese Utility Model Publication No. 55-40046.

In this system, fixed columns are provided on each of the headboard side and footboard side of a frame on which bedding such as a mattress is placed, and these fixed columns are provided with extendable columns that can be freely expanded and contracted in the vertical direction. Adjustment mechanisms for vertically moving the telescopic columns are provided on the input board side and the footboard side, respectively, and the frame is vertically adjusted by independently operating these adjustment mechanisms. In other words, when adjusting the height of the frame, first operate the adjustment mechanism on one side, for example the headboard, to extend or retract the telescoping columns on the headboard side, then operate the adjustment mechanism on the 7-board side to The telescopic column on the board side is expanded and contracted to match the height of the frame on the headboard side.

In this case, generally in a hospital room or the like, the bed is often installed with the headboard side pressed against a wall or the like, and the footboard side facing the aisle. Therefore, when operating the adjustment mechanism on the footboard side, it is easy to operate because it is on the aisle side, but when operating the adjustment mechanism on the headboard side, walls etc. get in the way, so you have to move the bed and use the wall. There is an inconvenience that you cannot operate it unless you release it from the camera. Moreover, it is troublesome that the frame cannot be moved up or down without operating the adjustment mechanisms on both the headboard side and the footboard side.

Therefore, in order to solve the above-mentioned problems, as shown in Japanese Utility Model Publication No. 57-59134, a vertical drive mechanism is provided on the base body, and a frame is attached to this vertical drive mechanism to enable vertical movement. It is also known that However, as described above, if the vertical movement mechanism is provided at the bottom of the frame, the space under the frame will be blocked by the vertical movement mechanism. Therefore, even if an attempt is made to use the space under the frame to store clothes for the patient to change into or an auxiliary bed for an attendant, it is inconvenient that the space cannot be used.

[Purpose of the invention]

This invention was made with attention to the above-mentioned circumstances, and its purpose is to simultaneously expand and contract the telescopic columns on the headboard side and the footboard side to adjust the height of the frame, and to make it possible to adjust the height of the frame. The object of the present invention is to provide a bed device that can be widely and effectively used.

[Summary of the invention]
In order to achieve the above-mentioned object, this invention provides telescopic struts that can be expanded and contracted with respect to fixed struts on the headboard side and footboard side of the frame, and also provides a movable member that moves up and down by rotation of a screw rod. The movable member and the telescopic column are connected by a connecting rope, and the screw rods on the headboard side and the footboard side are moved by the connecting shafts, and can be moved up and down at the same time.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the drawings.

1 to 7 show a first embodiment, and 1 is a frame on which bedding such as a pine mattress is placed. Two fixed columns 2 are provided at each of the four corners of the frame 1, that is, the headboard side 1a and the footboard side 1b. These fixed struts 2 are provided with telescopic struts 3 that can be expanded and contracted in the vertical direction, and constitute support legs 4.

These support legs 4 have the same structure, and the fixed column 2 is formed into a rectangular tube shape, and a guide body 6 having a guide hole 5 is provided at the lower end opening. and,
The telescoping strut 3, also shaped like a rectangular tube, is inserted into the fixed strut 2, and the telescoping strut 3 protrudes downward from the guide hole 5. A caster 7 is attached to the lower end of this telescopic column 3, and a sliding body 8 that slides within the fixed column 2 is fixed to the upper end inserted into the fixed column 2. Therefore, a gap 9 is formed between the inner surface of the fixed column 2 and the outer surface of the telescopic column 3.

On the other hand, vertical movement mechanisms 10.10 having the same structure are provided between the fixed columns 2.2 on the headboard side 1a and footboard side 1b of the frame 1, respectively. That is, 11 is a support cylinder fixed perpendicularly to the frame 1, and an upper support plate 12 is installed at the upper part of this support cylinder 11.
A gear box 14 having a lower support plate 13 is provided at the bottom thereof. Bearings 12a and 13a facing each other are provided on the upper support plate 12 and the lower support plate 13, and between these bearings 12a and 138, the support cylinder 11
Both ends of a screw rod 15 passing through the interior are rotatably supported. A movable member 16 made of a nut is screwed onto this screw rod 15, and this movable member 16 engages with a guide groove 17 provided in the support cylinder 11 so as to be able to move only up and down. In other words, the movable member 16 is configured to move up and down within the guide groove 17 by the forward and reverse rotation of the screw rod 15. Furthermore, this movable member 1
Notches are provided on both sides of the 6, and one end of a connecting cable 18, 18, such as a belt or wire, is connected to these notches by a screw. These connecting cables 18.18 are guided downward along the guide groove 17 and are hooked up to pulleys 19.19 provided on the frame 1. Therefore, the connecting cable 18.18 is divided into left and right sides around the screw rod 15, and is further guided into the gap 9 in the fixed column 2 via a pulley 20.20 provided on the side wall of the fixed column 2.2. ing. And these connecting cables 18.18
The other ends are respectively connected to sliding bodies 8.8 provided at the upper ends of the telescopic columns 3.3.

Further, the gear box 1 on the footboard side 1b
4 is provided with a two-axis motor 21 as a drive section. One rotating shaft 22 of this two-axis motor 21 is connected to the frame 1.
The other rotating shaft 23 projects toward the headboard side 1a. And the rotating shaft 22
is the bevel gear 2 in the gear box 14 on the footboard side 1a.
4.25 to said screw rod 15. Further, one end of a connecting shaft 26 is connected to the other rotating shaft 23 of the two-shaft motor 21, and this other end is connected to a bevel gear 24.2 in the gear box 14 on the headboard side 1a.
5 to the screw rod 15. The connecting shaft 26 is close to the bottom surface of the frame 1, and forms a space 27 at the bottom of the frame 1.

Note that 28a and 28b are limit switches that detect the upper and lower limits of the movable member 16, and 29 is a limit switch that detects the upper and lower limits of the movable member 16.
Stretch and shrink frame 1 to the desired height,
),,,oh. , □□Ah. . , 7' screw.

Next, the operation of the bed device configured as described above will be explained.

From the state shown in Figures 1 to 3, the operating section (not shown)
When the two-axis motor 21 is rotated, for example, in the forward direction, the bevel gears 24 and 25 in the gear box 14 on the footboard side 1b are rotated via the rotating shaft 22, and
From the rotating shaft 23 to the headboard side 1a via the connecting shaft 26
The bevel gears 24, 25 in the gearbox 14 rotate.

Therefore, the screw rod 15 rotates, and as the screw rod 15 rotates, the movable member 16 to which it is screwed rises.

By raising the movable member 16, the connecting cable 18.18 is simultaneously drawn into the guide groove 17, and the connecting cable 1 in the fixed column 2
8.18 are drawn out at the same time. In other words, the sliding body 8.8
is pulled down by the connecting rope 18.18 and the telescopic column 3
．． 3 protrudes from the lower end of the fixed column 2. Since this operation is performed simultaneously on the headboard side 1a since they are connected by the connecting shaft 26, the four support legs 4 extend simultaneously, and the height of the frame 1 can be raised. Then, by stopping the two-axis motor 21 when the height of the frame 1 reaches a desired position as shown in FIG. 2, the frame 1 can be maintained at the desired height.

Furthermore, when the height of the frame 1 is to be lowered, the screw rod 15 can be rotated in the opposite direction by rotating the two-shaft motor 21 in the opposite direction using the operating section. Therefore, the movable member 16 descends along the guide groove 17,
The connecting cable 18.18 in the guide groove 17 is let out. On the other hand, since the full load of the bed is applied to the telescopic struts 3..., if there is play in the connecting cables 18.18, the telescopic struts 3... It draws you inside and immerses you. Therefore, the height of the frame 1 can be reduced.

As described above, according to the first embodiment, the height of the frame 1 can be arbitrarily adjusted by rotating the two-axis motor 21 in forward and reverse directions using the operating section, and the operating section can be operated by remote control. For example, the patient can easily operate the device while in bed.

FIG. 8 shows a second embodiment, in which a manual type is used instead of an electric type. In other words, headboard side 1
a and footboard side 1b gearbox 14.14
The bevel gears 24 and 24 provided on the footboard side 1b are connected to each other by a connecting shaft 26, and
4 is provided with a handle 3o that is directly connected to the bevel gear 24. With this configuration, the footboard 1llllb1. : The connecting shaft 26 can be rotated by operating the provided handle 3o, and the four telescopic struts 3... can be simultaneously compressed by rotating the screw rods 15 and 15 as in the first embodiment. Can be done. Therefore, even if the headboard side 1a is installed with the headboard side 1a pressed against a wall or the like, the frame 1 can have a height of 11 nodes on the footboard side 1b.

〔Effect of the invention〕

! As explained above, according to the present invention, the height of the frame can be adjusted by simultaneously expanding and contracting the telescoping columns on the headboard side and the footboard side, and the screw for retracting and letting out the connecting cables connected to the telescoping columns. Since the rods are connected by the connecting shaft provided along the lower surface of the frame, the lower space of the frame can be widely used effectively.

[Brief explanation of the drawing]

Figures 1 to 7 show the first embodiment of the present invention. Figure 1 is a side view of the frame of the bed device in a low hanging state, and Figure 2 is taken along the I-II line in Figure 1. 3rd cross-sectional view along
The figure is a sectional view taken along the line
A cross-sectional view taken along the v-v line in the figure, Figure 6 is Vl-V in Figure 2.
FIG. 7 is a cross-sectional view taken along the line I, FIG. 7 is a cross-sectional view taken along the line ■--■ in FIG. 2, and FIG. 8 is a longitudinal cross-sectional side view of the footboard side showing a second embodiment of the present invention. 1... Frame, 1a... Headboard side, 1b.
・・Footboard side, 2・・Fixed support, 3・Extendable support, 15・・Screen/opening/do, 16・・Movable member, 18′1・・Connection cable, 21・・・2-axis motor (drive unit), 26...connection shaft. Figure 5 Figure 6 Figure 72 Figure 8 Procedural amendment l@ゎ10, -23El Director General of the Patent Office Mr. Manabu Shiga Manabu Shiga - Display of case 9 q# Application No. 59-238149, name of invention Bed device, amendment Relationship with cases involving patent applicants

Claims (1)

[Claims] A frame on which bedding such as a mattress is placed, fixed columns provided on each of the headboard side and footboard side of this frame, an extensible column provided on these fixed columns so as to be able to expand and contract in the vertical direction, and the headboard side and a rotatable screw rod provided parallel to the fixed support on each of the footboard sides, a movable member that is threaded onto the screw rod and moves up and down as the screw rod rotates, and one end connected to the movable member. a connecting cable whose other end is connected to the upper end of the telescopic column and transmits vertical movement of the movable member to the telescopic column; and a screw rod provided along the frame and connected to the headboard side and the footboard side. A bed device comprising: a connecting shaft that moves rotational force; and a drive section that applies rotational force to the connecting shaft.